CN203644889U - Novel laminated lithium ion battery - Google Patents
Novel laminated lithium ion battery Download PDFInfo
- Publication number
- CN203644889U CN203644889U CN201320863608.8U CN201320863608U CN203644889U CN 203644889 U CN203644889 U CN 203644889U CN 201320863608 U CN201320863608 U CN 201320863608U CN 203644889 U CN203644889 U CN 203644889U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- cathode
- anode
- battery
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical class [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 10
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000007770 graphite material Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009831 deintercalation Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model provides a novel laminated lithium ion battery. The novel laminated lithium ion battery comprises a plurality of anode sheets, a plurality of cathode plates and a plurality of diaphragm bags, wherein the anode sheets and the cathode plates are overlapped alternately; each of the diaphragm bags is in a bag-shaped structure with an opening at one end for separating the anode sheets from the cathode sheets, one anode sheet is arranged in each diaphragm bag, and the opening of each diaphragm bag is used for connecting the anode sheet with the anode of the battery; the cathode sheets are connected with the cathode of the battery; the anode sheets in the diaphragm bags can substitute the cathode sheets outside the diaphragm bags mutually. The novel laminated lithium ion battery is provided with one diaphragm bag on each anode sheet or each cathode sheet, different diaphragm bags are not connected mutually and the bag-shaped structure is easily fixed on the anode sheets and does not easily fall off, so that short circuit and micro short circuit of the anode sheets and the cathode sheets can be prevented.
Description
Technical field
The utility model relates to rechargeable battery field, particularly a kind of Novel stack sheet lithium ion battery.
Background technology
Lithium ion battery is a kind of rechargeable battery, and it mainly relies on lithium ion between positive pole and negative pole, to move work.In charge and discharge process, Li+ comes and goes and embeds and deintercalation between two electrodes: when rechargable battery, Li+, from anodal deintercalation, embeds negative pole through electrolyte, and negative pole is in rich lithium state; Contrary when electric discharge.The material that general employing contains elemental lithium, as the battery of electrode, is the representative of modern high performance battery.
In lithium ion battery, generally separate both positive and negative polarity with barrier film, to prevent short circuit between both positive and negative polarity.In prior art, square laminated plates battery generally adopts barrier film " Z " font lamination, and positive/negative plate is alternately overlapping, and as shown in Figure 1,101 is anodal, and 102 is negative pole, and 103 is " Z " font barrier film.If but pole piece dislocation and move film and misplace, easily there is short circuit and micro-short circuit problem in laminated batteries, affects cell safety.
Utility model content
For solving above-mentioned problems of the prior art, the utility model provides a kind of Novel stack sheet lithium ion battery, by changing the design to barrier film, the potential safety hazard of evading laminated batteries in prior art.
For achieving the above object, the application provides a kind of Novel stack sheet lithium ion battery, comprises multiple anode pole pieces, multiple cathode pole piece and multiple diaphragm bag;
Described anode pole piece and described cathode pole piece replace overlapping discharge;
Described diaphragm bag is the bag shaped structure of an end opening, for described anode pole piece and described cathode pole piece are separated, is equipped with a described anode pole piece in each diaphragm bag, and the opening of described diaphragm bag is used for making described anode pole piece to be connected with this anode;
Described cathode pole piece is connected with this battery cathode.
Optionally, the opening of described diaphragm bag is elastic opening.
Optional:
Described anode pole piece is made up of the material that contains elemental lithium; Described cathode pole piece is made up of graphite material.
Optionally, described barrier film is macromolecule membrane, which is provided with microcellular structure, and this microcellular structure can make lithium ion freely pass through, but electronics can not pass through.
Optionally, this battery is square.
The utility model provides a kind of Novel stack sheet lithium ion battery in addition, by the location swap of the anode pole piece of above-mentioned battery and cathode pole piece; Concrete, the anode pole piece in diaphragm bag is replaced with to cathode pole piece, described anode pole piece is substituted into outside described diaphragm bag.
The battery that the utility model provides, by a diaphragm bag parcel is set on each positive plate or negative plate, owing to not being connected each other between different diaphragm bags, and bag shaped structure is more easily fixed on positive plate and is not easy to come off, thereby can effectively prevent the short circuit of both positive and negative polarity pole piece and micro-short circuit.
Accompanying drawing explanation
Fig. 1 is " Z " word barrier film lamination lithium battery structure schematic diagram in prior art;
Fig. 2 is a kind of Novel stack sheet lithium ion battery of the utility model structure chart;
Fig. 3 is a kind of Novel stack sheet lithium ion battery of the utility model structure chart.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with embodiment and accompanying drawing, to the utility model, embodiment is described in further details.At this, schematic description and description of the present utility model is used for explaining the utility model, but not as to restriction of the present utility model.
Pole piece has three dimensions, adopts in the battery of barrier film " Z " font lamination, and barrier film has limited the degree of freedom of pole piece perpendicular to pole piece plane, pole piece has the freedom of two dimensions, if it is anodal together with positive pole that pole piece, along vertical lug direction dislocation, will occur, negative pole is together with negative pole.If along the dislocation of lug direction, may there is both positive and negative polarity short circuit in pole piece.For addressing this problem, the utility model provides a kind of novel laminated lithium ion battery, by only establish diaphragm bag on positive pole/negative pole, because the diaphragm bag on two pole pieces at the same level is not connected, and bag like construction can better be fixed on pole piece, difficult drop-off, thereby can prevent that pole piece from misplacing out from diaphragm bag, avoid the generation of the problems such as both positive and negative polarity short circuit, made the use of battery safer reliable.Below will be specifically described the utility model by specific embodiment.
Embodiment mono-
As shown in Figure 2, be the structure chart of a kind of Novel stack sheet lithium ion battery of the embodiment of the present application, comprise anode pole piece 201, cathode pole piece 202 and diaphragm bag 203.
As shown in the figure, anode pole piece and cathode pole piece replace overlapping discharge.
Diaphragm bag is the bag shaped structure of an end opening, for described anode pole piece and described cathode pole piece are separated.
It should be noted that, Fig. 2 is a part for battery structure, at the right and left of two cathode pole pieces of this figure, can successively arrange anode pole piece, cathode pole piece, anode pole piece
Wherein, being equipped with an anode pole piece in each diaphragm bag, is also that each anode pole piece is enclosed with a diaphragm bag, and the opening of described diaphragm bag is used for making this anode pole piece to be connected with this anode.
Cathode pole piece is connected with battery cathode.
The present embodiment is preferred, and the opening of diaphragm bag can be set to elastic opening, can better isolate like this anode pole piece and cathode pole piece, and can make diaphragm bag more firmly be fixed on anode pole piece, makes it can not come off.
This diaphragm bag is that macromolecule membrane is made, and which is provided with microcellular structure, and this microcellular structure can make lithium ion in electrolyte freely pass through, the conducting of barrier film ion but electronic isolation.
Anode pole piece is made up of the material that contains elemental lithium, and cathode pole piece is made up of graphite material etc.
Optionally, this battery can be made as rectangular cell.
Embodiment bis-
As shown in Figure 3, be the structure chart of a kind of Novel stack sheet lithium ion battery of the present embodiment, comprise anode pole piece 301, cathode pole piece 302 and diaphragm bag 303.
As shown in the figure, the unique difference of this structure and embodiment mono-is the location swap of anode pole piece and cathode pole piece; Concrete, the anode pole piece in diaphragm bag is replaced for cathode pole piece, and anode pole piece is replaced to diaphragm bag outside.
Certainly, Fig. 3 is also a part for battery structure, at the right and left of two anode pole pieces of this figure, can successively arrange cathode pole piece, anode pole piece, cathode pole piece
Each cathode pole piece is enclosed with a diaphragm bag, and the opening of diaphragm bag is used for making cathode pole piece to be connected with battery cathode.
The present embodiment is preferred, and the opening of diaphragm bag can be set to elastic opening, can better isolate like this anode pole piece and cathode pole piece, and can make diaphragm bag more firmly be fixed on cathode pole piece, makes it can not come off.
This diaphragm bag is that macromolecule membrane is made, and which is provided with microcellular structure, and this microcellular structure can make lithium ion freely pass through, but electronics can not pass through.
Anode pole piece is made up of the material that contains elemental lithium, and cathode pole piece is made up of graphite material.
Optionally, this battery can be made as rectangular cell.
The above embodiment of the utility model can reach following beneficial effect: by a diaphragm bag parcel is set on each positive plate or negative plate, owing to not being connected each other between different diaphragm bags, and bag shaped structure is more easily fixed on positive plate and is not easy to come off, thereby can effectively prevent the short circuit of both positive and negative polarity pole piece and micro-short circuit.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; and be not used in limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a Novel stack sheet lithium ion battery, is characterized in that, comprises multiple anode pole pieces, multiple cathode pole piece and multiple diaphragm bag;
Described anode pole piece and described cathode pole piece replace overlapping discharge;
Described diaphragm bag is the bag shaped structure of an end opening, for described anode pole piece and described cathode pole piece are separated, is equipped with a described anode pole piece in each diaphragm bag, and the opening of described diaphragm bag is used for making described anode pole piece to be connected with this anode;
Described cathode pole piece is connected with this battery cathode.
2. battery as claimed in claim 1, is characterized in that, the opening of described diaphragm bag is elastic opening.
3. battery as claimed in claim 1, is characterized in that, described barrier film is macromolecule membrane, which is provided with microcellular structure, and this microcellular structure can make lithium ion freely pass through, but electronics can not pass through.
4. battery as claimed in claim 1, is characterized in that, this battery is square.
5. the battery as described in as arbitrary in claim 1-4, is characterized in that, by the location swap of described anode pole piece and cathode pole piece; Concrete, the anode pole piece in diaphragm bag is replaced with to cathode pole piece, described anode pole piece is substituted into outside described diaphragm bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863608.8U CN203644889U (en) | 2013-12-25 | 2013-12-25 | Novel laminated lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863608.8U CN203644889U (en) | 2013-12-25 | 2013-12-25 | Novel laminated lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644889U true CN203644889U (en) | 2014-06-11 |
Family
ID=50876112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863608.8U Expired - Lifetime CN203644889U (en) | 2013-12-25 | 2013-12-25 | Novel laminated lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811016A (en) * | 2016-05-29 | 2016-07-27 | 合肥国轩高科动力能源有限公司 | Laminated lithium ion battery manufacturing method |
| CN114614104A (en) * | 2022-03-23 | 2022-06-10 | 上海兰钧新能源科技有限公司 | Lamination method and lithium battery |
-
2013
- 2013-12-25 CN CN201320863608.8U patent/CN203644889U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811016A (en) * | 2016-05-29 | 2016-07-27 | 合肥国轩高科动力能源有限公司 | Laminated lithium ion battery manufacturing method |
| CN114614104A (en) * | 2022-03-23 | 2022-06-10 | 上海兰钧新能源科技有限公司 | Lamination method and lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |